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Action Functional for a Particle with Damping
Federico de Bettin, Alberto Cappellaro, Luca Salasnich
In this brief report we discuss the action functional of a particle with damping, showing that it can be obtained from the dissipative equation of motion through a modification whi…
Observation of Quantum Droplets in a Heteronuclear Bosonic Mixture
C. D'Errico, A. Burchianti, M. Prevedelli +5
We report on the formation of heteronuclear quantum droplets in an attractive bosonic mixture of 41K and 87Rb. We observe long-lived self-bound states, both in free space and in an…
BKT-paired phase in coupled XY models
Giacomo Bighin, Nicolò Defenu, István Nándori +2
We study the effect of a linear tunneling coupling between 2D systems, each separately exhibiting the topological Berezinskii-Kosterlitz-Thouless (BKT) transition. In the uncoupled…
Correlation dynamics of dipolar bosons in 1D triple well optical lattice
Sangita Bera, Luca Salasnich, Barnali Chakrabarti
The concept of spontaneous symmetry breaking and off-diagonal long-range order (ODLRO) are associated with Bose-Einstein condensation. However, as in the system of reduced dimensio…
Superfluids, Fluctuations and Disorder
Alberto Cappellaro, Luca Salasnich
We present a field-theory description of ultracold bosonic atoms in presence of a disordered external potential. By means of functional integration techniques, we aim to investigat…
Bose-Einstein Condensation on the Surface of a Sphere
A. Tononi, L. Salasnich
Motivated by the recent achievement of space-based Bose-Einstein condensates (BEC) with ultracold alkali-metal atoms under microgravity and by the proposal of bubble traps which co…